Long time lurker here.
Is there such thing as a bicep reattachment surgery where the surgeon essentially elongates the bicep muscle belly and as a result shortens the tendon? My friend tore his biceps a while back and when he got surgery to reconnect the bicep to the tendon the surgeon asked him if he wanted to "improve" his biceps. He said yes and now his biceps have NO gap between the bicep and forearm (almost like he doesn't have a tendon) whereas before there was this good 1 inch gap of tendon between his bicep and forearm.
So, is it possible to have a cosmetic procedure where they lengthen your bicep muscle belly and shorten the tendon? I've read through loads of threads all over the internet that deal with muscle belly insertions and it usually boils down to "get better parents (herp derp) or get surgery" In not one thread that involved insertion points was surgery not mentioned, so I'm guessing this is very possible and there's a name for it (since my friend did get it, after all).