PARATHD-4258 My friend's little sister is super cute and way too easy to take advantage of, so I should be able to fuck her (6)

◆I have a girl I'm interested in. She's incredibly cute, a tsundere, and she shamelessly shows off panty shots and cleavage【Rina-chan】. But there's one problem…she's my friend's little sister. ◆At first, I was holding back for my friend's sake, but now I can't take it anymore. ●Inviting 【rina-chan】 who is drunk and defenselessly clingy to have a physical relationship!? Not satisfied with just having sex while friends aren't looking, doing this and that in front of sleeping friends...