[superus]

For me this has been going on this whole year.. I've dated my girl for 5 years and her 18 year old sister just started doing this in front of me this year...She was always the type to cover up and never let me see her in her bra and panties but i'm not sure where this is coming from. i must say though it's turning me on.

1. Me and The GF and her sister stayed at a hotel together. just for 1 night. I'm on my laptop while my gf's sister is taking a shower. My gf is on the bed playing with her phone. My gf walks up to me and starts talking to me and her her sister gets out of the shower with just a towel. No big deal....i guess...She grabs some clothes and runs back in the bathroom to change. She comes back out in her black panties and i pretended not to look but she screamed out "don't mind me!" then i looked and laughed. My GF wasn't bothered i guess....

2. I visit my GF's parents and her sister was there. I haven't talked to her in 4 months....i don't really talk to her....Anyway i was in the kitchen with my gf drinking some coke. we are surrounded by an island. Hopefully you guys know what that is. Her sister appears at the other end and starts talking to her sister. doesn't even look at me...."cool i feel awkward around you too i say in my head." While she's talking to her sister and of course i'm looking at both of them my gf's sister pulls down her leggings in front of me...wtf? the bathroom is next door! i see her bare blue cotton panties and i'm turned on again. she then goes to the other room to change her shirt and comes back in a shirt and panties. wtf

3.Still at her parents house. They have 2 bathrooms 4 rooms. Me and my gf and her sister stayed in the same room (downstairs). Ok she was taking a shower up stairs.....she had her clothes etc.... I went down stairs to be alone and i started playing with my phone. my GF soon comes down stairs to see what i was doing.. her sister comes in with just a towel on....I told her "hey do you want me to leave the room?" she said "no that's fine I have a roommate so it's cool" I said "your roommate is a girl" she then shrugged her shoulders...Mind you the downstairs bathroom is a step away from the room...She puts her green panties on while her towel is riding up. I couldn't believe it i saw a glimpse of her ass.. My GF later told her "comon put some clothes on" cuz she was walking in her undies getting ready to go out....


I have more stories..... But do you guys know why she started doing this? is this normal or what?