My Step-Sis Spank my big Ass and Sat on my face

Description: This is so weird! me and my step-sis cami was boring at home, she came to my room and we tried to get some fun, but this quickly turned hot, she told me she enjoyed some bdsm videos yesterday and she really wanted to know how they spank asses till red. of course i got horny immediately after listen "bdsm"word, so i said she can use my ass for that, i'm not scared to get my ass a little bit red, i think it's funny, and even funny if its my step-sis who spank my ass. thing it's this got out of control because we got too hot, i guess. suddenly, she just wanted to lick my sweaty feet, i couldn't deny, because i also was too hot, i really wanted to get my sweaty feet licked. she did and we really enjoyed. but! she suddenly standed, walked to me while i was lying on the bed and she took a seat on my face! she's truly weird and hot... still shocked, can't believe i have such a fetishist step.sis, i'm enjoying a a lot with her.