whip the cream

When a gentleman deposits his ejaculate into his lucky partner's splatterbox, he then withdraw's and treats the lucky recipient to a spot of fingerblasting. The rapid mixing of semen and air during this post-coitus treat, churns the substance into a white froth. Thereby whipping the cream.

She'd been a rather good girlfriend lately so I thought I'd give her a treat once I finished. I decided to bring her to orgasm by using my fingers to whip the cream.