My wife is a prude, on the beach she always wears regular bikinis (see third photo where transparency is a rare extra bonus), no nudism, no topless and no thongs. A few years ago she had a little accident leading to interesting sexy exposures. When she lays face down I put the sun lotion on her back, ass and legs. In the above case I did not put the lotion close to the bikini bottom (it was new and the cream could damage it), the result was that her skin was burned. After that accident with her approval I use this procedure to put the lotion on any exposed part of her body.
First I pull down the bikini bottom exposing almost half of her ass crack, like the first photo (not my wife).
Then I shrink the bikini bottom like a thong. Now her ass is almost completely exposed, like the second photo (not my wife) and i put the lotion on her back, ass and legs. I am very slow and I leave her exposed for about five minutes. At the end I pull up the bikini bottom (leaving a bit of ass crack exposed) and I adjust it trying to leave it a bit shrinked. Normally my wife adjusts the bikini bottom once more, but a few times she forgot and she fell asleep with her ass partially exposed.
During the years a lot of people enjoyed the ass of my wife in the above scenario, among them my brother, most of our friends and two coleagues of my wife (to be precise she is their boss). In the case of the coleagues she also forgot to adjust the slip (she received a phone call and she was distracted). She fell asleep and i got this extra opportunity. I went away (fake toilet break) leaving the two guys alone with my wife. She was asleep with her ass exposed they could have a good look without my embarassing presence and also take pictures. In my opinion this would be a a great topic at the coffee machine with other coleagues.
As already mentioned into another post today many women use thongs but earlier than five years ago a thong was rare and less frequent than a topless

My wife is 35 but has been wearing a thong or g-string since I bought her first one when we were dating and she was 26. She has a great ass and I love it (as does she) when she shows it off on the beach, boats, resorts, and even out condo complex.

That sounds like a great opportunity to suggest she tries a thong because her ass has already been exposed for the cream, so what's the harm in staying like that.

You are right but women are difficult to understand.
Another example my wife is a prude, it is difficult to convince her to wear a short skirt, but often she wears see-through transparent dresses without realising that her panties and bra are visible.

It's funny...

I had a girlfriend who wore modest bikini's, but she usually went topless and sometimes she would pull her bikini bottom into her butt crack and roll it a little bit down as to maximize exposure to the sun.

She would do this too at hotel swimming pools. Not always, but often enough.

One day we saw a young girl wearing a thong bikini at the hotel swimming pool. She wasn't topless, and it was a regular thong bikini (not one of those ultra tiny see through ones you see online). My girlfriend had to make a negative remark, something like: "I can't believe she's wearing this! You cannot wear this in public! What an attention wh*r*!"

I had to bite my tongue (because it would probably lead to an argument).

But apparently it's okay to be topless at the pool and exposing your ass by pulling your bikini bottom into your butt crack, but wearing a thong bikini is a bridge too far! :p

Amazing story. I enjoy showing off my wife’s hot ass and body on the beach as well. I started by first doing the same with my wife and slowly progressed from there. Some sunscreen brands have ruined her bikinis in the past. I started doing a similar thing all with the intent to “not ruin her bikini”. Knowing full well I couldn’t care less but the opportunity to “unintentionally” expose her is hard to pass up. I did the same thing when she lays on her stomach wedging her bottoms in like a thong to prevent lotion from getting on her bikini and then also pulling the down so the upper part of her crack is exposed. I also lift up the bikini to put lotion on the upper part of her ass exposing even more for anyone walking by. Before progressing to side tie bikinis she had one bikini that was more like a Brazilian cut almost a thong that when I wedge into her crack the edges of her asshole lines are exposed and part of her shaved pussy lips on each side. She happily allows this being unaware of the extent of her exposure all the hope to “not ruin her bikinis”. This has become a tradition. I am in charge of her sun screen and I am to prevent burns. I usually set a timer on my phone for every 2 hours so when it goes off she knows it’s time for additional lotion.

The next step is buying her side tie bikini bottoms and tie tops. First time I did this I was pleasantly surprised and how much I could get away with. When apply lotion to her upper back I completely untie the bikini top allows me to lotion her entire upper back. She is then also forced to stay still as if she raises up she risks exposing her tits. I like to leave the top untied while I move to her low back and ass. I then untie her bikini bottoms which allow them to sit very loosely I lower them down causing a large gape in the sides so anyone looking from the side or walking by as pear in and see her entire pussy and asshole. Slowly I work in the lotion making sure to spread her ass exposing as much as I can. It is interesting how fast men will take notice and then need to walk past us while I apply lotion. I usually leave them untied as I do her legs and spread her legs to get both sides and this can allow for more visibility of her pussy and asshole. Also her bikini may not stay in the same position a I lotion her legs and have gotten the bottoms to fall to the side basically making her fully nude on the beach.

I have since progressed to buying her thongs as she has become more used to seeing other women wear thong bikini’s. Side tie thongs allow for obviously even more exposure. Update if you progress to any further levels of exposure.

Maybelater…
 

Very good description, but a couple of photos would be ideal.

Glad to report that the thong trend continues….just spent a week in the carribean, the amount of cheeks out was shocking…probably 70-80% in thongs or cheeky bottoms. Quite a few left very little to the imagination…only a few topless sunbathers tho….if we could only combine the 2 trends the world would be a better place.

Glad to hear that the trend continues! Any standout bikinis or views you saw while spending that week in the Caribbean?

Does anyone have any experience of south east asian (e.g. Thailand, Malaysia, Vietnam etc.) beaches with regards to thong bikinis?
Are they acceptable to wear and, if so, is it as common as Europe?