What she lacks in technique she compensates with relentlessness. Bet his ass was sore afterwards. Would have loved a GF who did this to me every time she felt I deserved to be taken down a peg or two (pun intended!).
One of my wife’s favorite ways to fuck my ass was when she bent me over her vanity so that she could see me getting fucked. She loved watching my grimaces and moans as she fucked me deep and hard. She totally felt dominant and superior wearing a cock that never went soft and lasted as long as she wanted to fuck me until she got bored.