I was sitting in a chair, still in my Zorro mask (we were all still wearing our masks) in the corner of the room just watching to see what would happe....Mom poured them both a shot and said, "Challenge number 1, drink this with me."Heather laughed, drank the shot and said "Is that all you got?"Then I couldn't believe what mom did next. She walked over to me, had me stand up, wrapped her arms around me and kissed me. But not the usual mother/son kiss. This one was not even passionate, it was. The girls started kissing again. Rya started moving down Sheri’s body, kissing her ear and neck. She then moved her mouth to Sheri’s breast and licked the cum from her body. Rya swallowed the cum this time and moved back up to kiss Sheri again. Very little was said after that. Sheri and Rya kissed for a few more minutes and Matt gave Sheri a kiss on the cheek before she started to walk back over to the railing. Sheri’s face and body glistened in the moonlight, still wet with Matt’s cum. I. "Fuck!" she screamed, "Fuck that's good!" You like that whore?" I demanded."Yes, please make me hurt. Make me your slut!"Not wanting to completely wear out any one spot I dropped her tits and pushed her back onto all fours. I pulled my cock out from my shorts and laid it across her ass."Yes, fuck your mother!" she screamed, "Fuck me like a whore!"Wanting to make her beg I started rubbing my dick over her ass and her wet pussy, but was very careful not to make any penetration."Please fuck me,. ” “Not so much when it happened,” Erin told me with a smile, “but it would feel far worse now if you weren’t turned on.” Thank god, the rest of the meal went by in silence. I focused on the pleasant taste and the warm feeling of a full stomach and emptied my glass of water. Once we were all finished, Bridget took a look at the wall clock. “Holy Deity, it’s after ten already. Now off with you both into the bathroom while I do the dishes. And don’t dawdle.” So I traipsed after Erin to her room,.