It would probably hurt too... It depends and varies from person to person... However... what else are you going to use in your cycle... Mixing prop or sus with EQ, make injections almost painless... As good as it gets my friend, so if possible, you might want to give it a try...
Never heard complaints about injection pain from real Virormone bro, it is good stuff. Nothing like Sust in that department for me, although I have heard of a number of people having pain with other versions........