rusted tin roof

When a girl is giving a male oral sex and uses the roof of her mouth to increase the pleasure for the male participant causing him to feel many times pain as the roof of her mouth is very coarse, yet pleasure at the extreme level also causes the reciever to coat the roof of the mouth with a metallic shine, same as Tin Roof, just immediatelyafter anal sex

This Girl I know loves giving a long Rusted Tin Roof.