I'm sorry I can't be much help as I don't really share the same equipment but in my experience some guys will get really sensitive right after they orgasm. I have to immediately stop stimulation of any kind because he's become too sensitive. My boyfriend's whole body kind of becomes sensitive. I can't touch him in any kind of sexual way immediately after he cums. It's just too much for him. He doesn't stay that way for long but right after he's pretty sensitive.

Wish I could've been more help.