Dickache

He couldn’t remember a time when he’d been so tired, worn out, wrung out, from an endless night of sex. Everyone was familiar with a headache, but a dickache?

Source: wiktionary

Add reluctant lust to the list of his current emotions, and he was in danger of getting a headache. And, much to his shame, a dickache. Because Nina had smiled like that on the day he’d gotten between her thighs, lips curving in pleasure before his tongue slipped inside her and that mouth of hers parted on a filthy moan…

Source: wiktionary

Ryan doesn't like it, although he's trying to keep his possessiveness in check. He's staying with me a lot in my bed, always leaving before I'm up. He says seeing me dance night after night gives him dickache, like a headache but with his dick, so it's my own fault really. Cheeky bugger!

Source: wiktionary