The incident took place in the 19-year-old’s home in Västerås after the couple had had an argument, the local Vestmanlands Läns Tidning (VLT) reported.
Following the fight, the girlfriend took some sleeping pills and went to bed.
While his girlfriend was sleeping, the 19-year-old then attempted to have anal sex with her.
She told the court that she was drifting in and out dreams when she sensed someone caressing her, but was soon abruptly awakened by a thrust of pain when the 19-year-old attempted to enter her anal opening.
Following the incident, which took place in late May, the woman was required to take anti-anxiety medication to deal with the mental distress it had caused.
While the 19-year-old claimed he was unaware his girlfriend had taken any medication, she said during the trial that she had indeed informed her boyfriend that she had taken the sleeping pills.
The 19-year-old admitted he had made a mistake, explaining as well that the couple didn’t usually engage in anal sex.
But according to the Västmanland District Court, the 19-year-old was fully aware his girlfriend had taken the pills and had attempted to take advantage her helpless state when he tried to have anal sex with her.
As the girlfriend wasn’t in a position to consent to the sex act, the 19-year-old’s actions constituted rape, the court found.
The court sentenced the 19-year-old to 14 months in prison and ordered him to pay the woman 85,000 kronor ($13,000) in compensation.