Perhaps it's from having built up steam during their time in the shower, but the pressure in her groin builds faster then last night. She can feel him put a little bit more force into his explorations of her inner walls. She doesn't bother trying to stall coming. When he switches to caressing her clit with a finger, she knows that's it. Waves of pleasure start rippling through her, not as strong as they last night, but still there.