Jessica Simpson flashed at gym

Jessica Simpson accidentally saw an elderly man's private parts when she was at the gym.

The singer-and-actress got the unexpected eyeful while she was boxing at the gym yesterday (14.10.10).

She wrote on her twitter page: "Dear elderly man at the gym: it's hard 4 me 2 keep composure whilst punching at chipmunk speed when ur ball sack spills out of ur wind shorts. (sic)"

However, the incident didn't completely distract Jessica from her work out.

The 29-year-old star – who took up boxing earlier this month to get fit after being criticised for seemingly gaining weight last year – added on the micro-blogging website: "Boxing has changed my life! I have so much energy and it has cured my insomnia. Although I don't think I can get out of bed I'm so sore."

Jessica - who is currently dating Smashing Pumpkins frontman Billy Corgan – has previously spoken about how obsessed she is with her new fitness regime.

She tweeted: "Just done boxing... second day in a row... Have I lost my marbles?"