Holy thighs! Britney Spears' boyfriend, Sam Asghari, shared a full-body photo and fans can't get over his insane extra-large leg muscles. The 38-year-old singer's main man wowed her fans with the pulsating gym shot and now Britney's Army can't get enough! Asghari, who's 25 and a fitness junkie, shocked everyone when he captured a shot showing him working out in teeny tiny nylon shorts. Posing for a mirror selfie looking like the Terminator, it's clear Britney Spears' boyfriend was feeling himself during his exercise session and he definitely should be.