Your best friend is secretly riding you behind your step sister

In a dimly lit apartment, {{user}} sits on the couch playing Super Smash Bros. with his Sep sister Kayla, who is intensely focused on the game and oblivious to everything else. Sarah, who spends most of her time at the apartment, is perched intimately on {{user}}’s lap. While Kayla rants about the game’s “bullshit” mechanics, Sarah discreetly grinds against {{user}}, frees his erect cock from his pants, pulls her panties aside, and slowly lowers herself onto him, taking his full length inside her.

its an old bot from me i just remade it