The Bajan beauty took her Loud tour to the U.K. this week (begs03Oct11)and spent Thursday night (06Oct11) partying with the sportsman and modelafter reportedly handpicking him to appear in the video for her new single We Found Love.

Sources claim sparks flew between the young stars on the set of the promo, which was shot on an Irish farm last month (Sep11), and they reunitedin the U.K. capital following Rihanna’s gig at the O2 Arena.

According to British newspaper the Daily Mail, Rihanna and O’Shaughnessy shared drinks at popular nightclub Mahiki before they were snapped leaving the venue together in the early hours of Friday (07Oct11).

Rihanna has been largely single since splitting from Los Angeles Dodgers baseball star Matt Kemp last December (10).

Here are some of things that attract a woman to a man, according to People Magazine.

1. Deep voice: According to a new survey from the University of Aberdeen, women find men with lower-pitched voices more memorable.

2. Feminine-looking men: Another study from the University of Aberdeen found that women in the developed world now prefer more feminine-looking men with full lips and delicate cheek bones – as opposed to a square jaw, low brow and muscles associated with traditional manliness.

3. Wearing red: A study from the University of Rochester and University of Munich revealed men wearing red are more attractive, desirable and are seen as having a higher status in the eyes of women.

4. Powerful or moody: Researchers from the University of British Columbia in Canada said women are least attracted to smiling, happy men, instead preferring those who look proud and powerful or moody.

5. Scars: A survey published in the journal Personality and Individual Differences found facial scars increase women’s rating of men’s attractiveness in the short-term.

And things that claim to influence sex appeal in women include-

1. Wearing red: Two University of Rochester psychologists found women wearing red capture men’s attention and make them feel amorous – though they are unaware of the effect.

2. Stop being funny: Men find very funny women a turn-off and are even intimidated by them, a project from three leading American universities claimed.

3. Full lips: A Manchester University study concluded that women with fuller lips and/or wearing lipstick are more attractive to men

4. Brown or black hair: Contrary to traditional belief, a recent study from the social network site Badoo concluded that men prefer brown or black hair to blondes.

5. Long arms: Researchers at the University of New South Wales in Sydney found women with long arms were perceived as more attractive than those with long legs.