In the couple of minutes before he cums they're getting ready for it and want to maximise chance of her getting knocked up - it's a real climax moment.
Sounds like there is another woman present. The conversation with jan, her and hubby after the sex is so hot. Just as good as the sex. This is why Jan B's videos are so popular.
The posting of this vid by another x-hamster guy suggests that in this vid Shea got herself knocked up by this guy and this was almost certainly the intention. Jan B schemed all this stuff you know: Made sure the slut was not on birth control and at her fertile time of the month.