A man with a distinct and offensive tattoo on his forehead was easy to pick out in a line-up after a woman reported being sexually assaulted.

Christopher Wilson, 37, had the words "I’m a pornstar and I f*** teen s****" stamped on his forehead.

Wilson, from Cincinnati, Ohio, allegedly punched and kicked his victim, forced her to the ground and groped her genitals.

The incident took place in May 2015 outside a university campus, according to court documents.

The victim had not been named and it is not clear whether she was a minor or a student at the university.

Wilson will stand trial for assault and sexual imposition.

Sexual imposition is an offence against Ohio state law, which is when a person’s "thigh, genitals, buttocks, pubic region, or (female) breast" are touched without their consent.

In his booking photo, the tattoo can be seen in capital letters and blue ink.