IENFH-028 - Teasing my sleeping sister backfired, she locked me in with her legs and demanded a creampie

Seeing my sister sleeping so defenselessly made me lose my mind. I tried to hold back, but I couldn't resist. When I touched her, she opened her eyes and started begging for it. As I was going at it, she suddenly locked her legs around me, trapping me in place. I told her it was dangerous to creampie, but she wouldn't let me go!