Look at this S! Cupid's Prank - Vol. 5 Ch. 46 - Screw, or Be Screwed

[MangaDex]

 

[DreamNymph]

Kamon-san is a professor in this stuff lol

 

[etriuswimbleton]

Im guessing this manga's favorite character is Kamon. 100%. Well since she's not a virgin, it would be less guilty. all hes gotta do is just stick it in once then out. and thats it. no fucking. unless she is, then this would turn out very differently