He is just pleasuring himself, it doesn't mean he wants a real one in the butt. But that doesn't mean he doesn't want one in the butt either. You didn't say how old your son is, but from approx. the age of 10 to 16 it isn't abnormal for your son to be exploring his body. Some young females and males are more curious about their bodies than others their age. Yes, it would be pleasurable and I wouldn't be at all concerned.
Only if the boy has a sexually transmitted disease can you get a disease (infection) if he ejaculates in your anus.
Usually a cock
I would be more concerned with what type of "things" and what damage you may be doing instead of instead of it being Gay. You may be or you may just be experimenting. Other than the potential for damage, I wouldn't worry about it.
no
Hemorrhoids are not sexually trnasmitted. THey are not caused by a germ that is spread by sex. They are caused by increased pressure in the veins aroud the anus.
Yes, a cucumber can be inserted into the vagina or anus and/or to simulate a penis.
Yes, there are many fun things to do with the anus.
my boyfriend likes my anus no matter how it looks, so if the man loves you he will love every part of your body, including your stretch-marked anus :)
No
No
Masturbation is the process of sexually stimulating yourself. Whether it be through penis, vagina, breast, anus, etc.
Fluid