Source is Yarukkya Kishi. I don't know what the girl with glasses said, but it sure got a response.

[valssu (Charu)] Oiroke Quest (Dragon Quest XI)
 

Some pages from Oiroke Quest

Source is Joshikousei

Phoebe from Pokemon drawn by Tsukishiro Saika.

Chick elbows another chick in the boob, then presses her nipple against the one she elbowed and pokes the breast. Then in another gif, looks like its from the same show, she presses her other boob against another chick's breasts.

Kandagawa Jet Girls

Anime
 

From Crayon Shin-chan - 23a

Source?
 

Anyone know where these are from?

A cockroach in your clothes.

Source is Gekitotsu! Joshikousei Oiroke Sensha Gundan.

はころく
 

this artist, はころく, posts a lot of great stuff especially in the requests preview posts (such as the latest few posts on their pixiv) although i've yet to figure out if these are posted fully/clearly anywhere

the images in this posts are from pixiv and their short series 先輩忍者と後輩くノ一

would love any help tracking down the full versions of those requests they draw

(i would add a link to their pixiv but i can't posts urls here - would encourage checking it out)