"This isn't cheating, right?" When my girlfriend's sister found out I was a virgin, she started seducing me in various ways... To be honest, I'm happy because she's a really beautiful woman, but she has a girlfriend... "It's cheating to go all the way to the back, but it's okay if it's just the tip!" She teases me by rubbing her pussy against my glans. I secretly insert it in various places, hiding it from my girlfriend! Isn't this cheating... (sweat)