Khloe Kardashian may be bisexual

Khloe Kardashian thinks she's bisexual because she can't stop thinking about Katy Perry's "amazing" boobs.

The reality TV star married basketball player Lamar Odom after a whirlwind romance last year.

The two are blissfully happy, but Khloe has recently found her thoughts turning to other female celebrities.

On a recent flight she mused on the figures of Katy and Beyoncé Knowles, and revealed she admires them both.

"Long plane ride 2MIA. Learned a lot on the flight.Realized Katy Perry=AMAZING boobs beyonce=banging body n I might be bi due to this tweet (sic)," she wrote on her Twitter page.

Khloe wasn't the only star to admire Katy's assets. Tennis player Serena Williams is also in awe of her chest, and can't understand how she has such big breasts when her figure is so slender.

"@KhloeKardashian lol I saw that Katie perry and thought she had amazing boobs too! Lol they were like my size!!! Dannnng!! LOL (sic)," she wrote, in reply to Khloe's message.

Khloe was relieved to hear it wasn't just her who was obsessed with Katy's bosom. "I know and she is so tiny!!! Great rack! LOL you both! Hahaha (sic)," she wrote back to Serena.