I watched as both girls turned over onto their backs, both of them leaving their tops on the towels as they rolled over, now bare chested."Oh...Dad......i," sputtered my step-daughter, just now noticing my presence.Initially she was surprised to see me but after the initial shock, immediately calmed right back down. Riley nearly jumped out of her skin at the comment and had a slightly worried look on her face."Who else came out?" she inquired."Just me," was the simple answer I gave her."Oh. You. But the next message froze him. "Make it up to me." What the fuck does that mean??" Make it up to me. Make me forgive you."Charlie sat still on his couch, butt naked and holding his phone in one hand and a marker in the other. He felt an overwhelming urge to make Sam feel better, and finally chose to write, "Sorry, Sam," along his cock, with a cute little sad face following it. He sent a picture, and waited.Five minutes. Ten minutes. Seventeen minutes passed before Sam curtly replied, "Not. She sat on my face and sucked my cock for hours as I suckedher clit and gently worked on her ass . Slippery lube thatI had brought with me along with a small Vibe and of coursemy fingers worked on her tight virgin ass. Soon she broke out a short fat dildo. Surprisingly she sharedthat she often masturbated and wondered what her neighborsthought of her moans yet she said she rarely ever came. Mmmmma challenge. Soon I had that big Dildo (about as big around as my wrist) in her pussy. I sucked on. Looking at me she said "who me and two males or you and two females?". I replied with somewhat of an excitement that as she was not aware of it, I seen her in a throat job, with Anna (her friend) watching. "now how did you do that ?" "easy" I replied, "you are bi, Anna wanted a demonstration of a blowjob and she organised a Stud". To her amazement, she wasn't aware that I had "spied" on her and without much argument she agreed to have for a start a two male, one female (her) as she was curious.