What is this?

[miffed]

Should I be worried?

Some points:
It is painless
The only contact is BBBJ
She stained the condom with a bit of blood during sex (not sure too rough? Too big?)

[Big Sexy]

if you want a guess diagnosis over the net.. then refer to this post...
https://sammyboyforum.com/showpost.php?p=18885237&postcount=208

otherwise go see a doctor for a proper diagnosis...

[IAmAwesome]

She stained the condom with a bit of blood

Was the condom still intact or was there any breakages or slippages?

[miffed]

Was the condom still intact or was there any breakages or slippages?

Still intact, no breakages

[cuntjigger]

If it's itchy or sore, might be HPV in incubation period! 👌