[Her tongue starts to rub over the underside of his cock as he thrusts, and she whimpers--no, that's wrong, he whimpers around it softly as the taste and the smell of it floods her--him.

He starts to swallow, hesitantly at first, drinking down the pre-come pooling on his tongue, feeling the knot barely brush his lips, and...he shouldn't feel so hungry for it, he thinks, but swallowing it down makes him feel good, lighter and heavier at once.]

Mm...mmh...