Love it.
Get him to cum in her. Missionary.
Leave his cock inside her.
Then get him to massage her. Start just above her pussy lips and using his thumbs…. Very slowly and Firmly push down on her, working his way up to her belly button. As she lays on her back. Like a tube of toothpaste!
This helps his load find it’s way into her womb. Let nature decide what happens next.
Do this a few times and eventually try to get her to use her own hands and thumbs (this is hotter) whilst they cuddle, chat and kiss.
15 minutes of doing this, very firmly, to the point where it hurts her a little…. And gradually getting faster and longer with those massage strokes = a guaranteed breeding.
The risk and watching this blows your mind.