Stirring in her guts

When a man Penetrates a woman vaginally or anally , usually in missionary but some times in flat position rear entry, where a man to intensify the woman's pleasure add a hip grind/wind to his pelvic thrusts particularly thrusting deeply on the upward grinds intentionally taking care to aim for that individual woman's most sensitive walls as he has discerned from earlier thrusts. When the man does this while the woman's orifice is very moistened , the rubbing sound it produces sounds reminiscent of the sound when one stirs cheese sauce into softened boiled macaroni - hence the sex term "stir my macaroni " , but it is ultimately borrowed from a famous Bernie Mac comedy sketch where the punchline involved sex advice where he referred to this same grinding pelvic thrust instructionally saying "stir it like mother fucking coffee"

I stuck my dick in her and started stirring in her guts like coffee!

mash her guts

The act of sexually penetrating a partner so deeply, forcefully, and continuously, that you physically mash their guts.

Dude did you see that girl? I would totally mash her guts!!

Why yes Oliver, Glen and I had a wonderful time last night. After we were done sword fighting he penetrated my anus and mashed my guts!