My friend's last name is Fister.

The fisters gathered at the park for a picnic.

He was diagnosed with fistula-in-ano.

He ham-fistedly tried to fix the broken vase.

He was shocked when he saw a fistfuck video on the internet.

He likes to fistfuck his partner.

He enjoys fistfucking his partner.

He fistfucked her last night.

He enjoys engaging in fistfucks with his partner.

He fistfucks her with passion.