SPRD-680 - My wife's bra is loose while doing yoga, Asuka Tsubaki

A couple attends a free local yoga class on the weekend. Asuka Tsubaki, a slender beauty, sweats as she tries the poses. However, her husband can't focus because her bra is visibly loose, exposing her nipples every time she moves. He's constantly worried that others might catch a glimpse of her chest.