Two dwarf guys pull two girls at a party and take them home.
After getting each of the girls into their bedrooms the first dwarf just can't manage to get it up and to make things worse, all night he can hear his buddy saying,
"Here I come again 1-2-3 uuuh".
The following morning the first dwarf said to his buddy,
"How embarassing, I couldn't even get an erection last night"
To which his buddy replied, "You think that's bad, I couldn't even get up onto the frigging bed!!!