Stupid to Bass Anatomy

Ok,
I don't fish much and don't ever catch anything . But my daughter,son and I
went fishing today and caught 3 decent bass. I tried to clean them the best
I could. In two of them there was this whitish/yellowish striny thing that
looked like an octopus maybe with more than 8 "legs" I didn't count . And
one of them looked like it had an "egg sack" in it . Is what I am seeing the
male gender "equipment" .
Please don't laugh at me . My son thinks it is worms and now won't eat them
.. I have heard of fish having worms but aren't they like little grubs ?
These things were all attached .
Thanks,
Raz