A SEX attacker has been locked up after climbing through a young woman's flat window and ordering her to strip off.

Qasim Hussain, 20, was drunk when he got into bed with his frightened victim and groped her under her nightdress, Bradford Crown Court heard yesterday.

Hussain, of Queen's Road, Manningham, Bradford, was sentenced to 20 months in a young offender institution to run consecutively to a custodial sentence he is already serving for possession of Class A drugs with intent to supply.

He pleaded guilty to sexually assaulting the woman at her flat in central Bradford on August 2 last year.

Hussain had 14 previous convictions for 20 offences, including robbery, but none for similar matters.

The court heard he appeared at the open window of the 20-year-old woman's ground floor flat at 7.20am.

He asked to come in and when she refused, he climbed in uninvited and laid down on her bed next to her.

He pulled the quilt over them both and sexually molested her after saying: "I just need to get my head down. I am drunk."

Hussain followed his victim into the living room when she tried to rouse a male friend to ask him to help her.

She then left the flat and fled to the top floor of the building where she banged on a neighbour's door but got no response.

Hussain followed her and ordered: "Strip. Get undressed. I am not going to hurt you. We are just going to have a bit of fun."

He then made crude suggestions to the woman's two female flatmates and offered to expose himself indecently, the court heard.

The police were called and Hussain was arrested nearby.

He alleged the woman invited him into the flat and denied any sexual touching.

Hussain's barrister, Nicki Forster, said he was under the influence of alcohol and drugs and could not recall exactly what he did that morning.

Hussain was 19 at the time and very immature.

"He tried it on and he got it very wrong," she said.

Judge Colin Burn ordered Hussain to sign on the sex offenders register for ten years.

He said he was intoxicated and it was a frightening experience for his victim.

"You did not have any evil intent but the effect on your victim must have been very scary," the judge said.