Gretchen was very good at very many things, but one of her favourite skill sets was sex. She'd mostly gotten past the need to just go out and shag anyone who would have her and now, generally tended to sleep with people she liked. As much as she loved being the focus of attention, she also enjoyed being able to make Trevor come, or knowing that she was the cause of the noises Nat was making. It made her proud and fed her ego, which didn't really need much feeding.
Moving with Nat's hand, Gretchen curled her fingers in the other woman and pressed her thumb against her clit. She snogged Nat deeply before pulling back slightly and ducking her head to kiss her way down her chest.