Marvin Humes kicked off his stag party by being handcuffed to a dwarf.
The JLS singer - who is marrying The Saturdays star Rochelle Wiseman this summer - is currently in Las Vegas celebrating his last weeks of freedom as a single man and his bandmates decided to start proceedings by taking him on a tour of the city's casinos while attached the diminutive guy.
They also forced the 27-year-old heartthrob to wear a long T-shirt with a woman wearing a bikini on it.
The dwarf, who goes by the name of 5 Cent and belongs to a company called Tiny Entertainment, promised to make Marvin his ''bitch'' for the day.
The party group - which includes fellow JLS stars Oritse Williams, J.B. Gill and Aston Merrygold as well as several of Marvin's close friends - then hit the famous Las Vegas strip to check out each hotel's gambling facilities.
Although she is back in London, Rochelle, 23, has seen what's going on and tweeted about her fiance's new friend.
She wrote: ''I'm sure his new pal is nice but he can stay there ha x. (sic)''
When the group arrived in Vegas, Oritse made them all wear masks which had Rochelle's face emblazoned on them.