not doing stomach vacuums while browsing /fit/
>>39889065
>tfw always do stomach vacuums when someone mentions them
Also, protip: if you mention kegals, girls will start doing them
>tfw i can't hold my breath for more than 15s
wish i could get more brehs
>>39889065
i always touch my cock when im on /fit/
>>39889172
I struggle with this as well. Longest I've ever managed to do a stomach vacuum for was 30 seconds and I almost passed out.
>>39889172
>>39890092
You don't need to hold your breath during vacuums. In fact, holding your breath makes them easier.