He could have relaxed her much better inside with warmth of cum....

I would love to walk in on this. Imagine a friends wife or an aunt or something.. I would just pull my dick out, pull her legs up in the air and then fuck her newly orgasm'd cunt with my thick cock. Hard.
Hearing her moan like a wild animal makes me think it would send her over the edge getting an unexpected rough fuck after that. No resistance, just cock. In and out. Hard.

hot

Mmmm i need a zoo wife