i assume erections make them rather light-headed, so they need to sit around on the internet and recover.
Wow, if I had a penis for a day I'd love to know what it feels like to get head from my gf, both from a standpoint of knowing what all the shouting is about and also so I can become better at doing it myself (though I've had no complaints). I'd like to know what's going through a man's thoughts and body during sex and I'd love to feel that enjoyment they so obviously receive.