406FNS-071 My girlfriend's slutty sister is super sexy and missed the last train to stay over. Goddess Jun

I've met her sister once before, and she suddenly called me saying, 'Missed the last train, can I stay over?' She keeps touching my body. I couldn't refuse and let her into my cramped one-room apartment, but there's no way nothing will happen if we sleep in the same bed...! 'There's a gap and it's cold, can I cuddle up to you?' This is the sign of temptation, right?! Having sex with her sister all night long in one bed! This sex can't be stopped! Jun, the little devil goddess, explodes in this one.