Fun night, then? Christina Aguilera's boyfriend Matthew Rutler emerges with her red lipstick smeared all over his face

Things certainly got hot and heavy between Christina Aguilera and Matthew Rutler last night.
Emerging from The Beverly nightclub in Beverly Hills, the 30-year-old's boyfriend was spotted with her signature red lipstick smeared all over his mouth.
It appears that the younger 25-year-old struggled to keep his hands and his lips off the Dirty singer, who looked sexy in a revealing black maxi-dress.

SCROLL DOWN TO SEE VIDEO...

Hot and heavy: Christina Aguilera's boyfriend Matthew Rutler emerged from The Beverly nightclub in Beverly Hills last night, with the singer's lipstick smeared all over his mouth

The couple looked a little worse for wear as they emerged from the club, especially Christina, who needed a helping hand from Rutler as they made their way back from the car.
While her eye-make-up was sill in tact, she appeared somewhat glassy eyed.
Earlier in the night, the couple were enjoying a romantic dinner date at their favourite Italian restaurant, Mozza Osteria.

Nice shade: There was no doubt that it was  Christina's signature red shade on the 25-year-old's face

Christina had slipped into her sexy long flowing frock had peek-a-boo cut-outs in the front and back showing off the 30-year-old's cleavage and part of her low-back tattoo.
Her inking is a Hebrew psalm, meaning: 'I am my beloved's and my beloved is mine'.
Christina paired the look with a cropped leather jacket and wore her long blonde hair up in a messy bun and slicked some signature red lipstick on her lips.

Romance: Earlier the couple went for a romantic dinner at their favourite restaurant Mozza Osteria

Peek-a-boo! Christina's long flowing frock had a peek-a-boo cut-out in the back, which showed off her low-back tattoo

Mozza is a favourite haunt of the couple, and is the same eatery they dined at before they were arrested in the early hours of the morning at the start of March this year.
Christina and Rutler were both arrested on March 1st after being picked up by police following their night out.
They were taken to the West Hollywood Sheriff's station at 2.45am where she was booked for public intoxication, while Rutler was charged with driving under the influence.

Looking good: Christina paired the look with a cropped leather jacket, wore her long blonde hair in a messy bun and slicked some signature red lipstick on her lips

The L.A. County Sheriff's Department set Rutler's bail at $30,000.
Last month the drink driving case against Christina's man were dropped due to insufficient evidence.
He was not charged after the LA County District Attorney officially rejected the matter.

Guest: Christina and Rutler were dining at the restaurant following the singer's appearance on the Jimmy Kimmel Show

The authorities ruled that Rutler ultimately had a alcohol level of 0.6 - safely under California's 0.8 limit to drive - and not 0.9 as originally reported, TMZ.com claims.
Christina was a passenger at the time of the arrest early last month and was arrested for public intoxication and was deemed 'incapable of taking care of herself'.
She was not charged with any offence.
Christina and Rutler were dining at the restaurant following the singer's appearance on the Jimmy Kimmel Show last night.
The Beautiful singer slipped into a 50's style polka dot dress for the occasion.
The form-fitting frock hugged her stunning curves in all the right places.

Retro: The Beautiful singer slipped into a 50's style polka dot dress for the occasion

She admitted to the host that she is frightened of driving in LA because of the paparazzi, and also said that she is flattered when fans get tattoos of her.
'It’s so sweet, it’s so flattering. I don’t know what to say when I see it, I’m always in awe,' she said.
A fan of tattoos herself, Christina has five as part of her body art collection.
They include 'Xtina' on the back of her neck; one above her left hip; one on her left wrist; 'Te Amo Siempre' on her left elbow and her low-back tattoo.

Dishing: She admitted to the host that she is frightened of driving in LA because of the paparazzi, and also said that she is flattered when fans get tattoos of her