Urm, well it kinda happens all the time; ever heard of a blood transfusion? AIDS. have a doctor present
Because you might catch an infection, HIV is a blood transmitted infection for example.
Yes if you still need the needle to pierce yourself it is cool but not someone else because it is you needle now that it went through your lip.
Doing a buttocks injection is simple. You find the spot where the needle of solution needs to go in, insert the needle, and inject the fluid.
You can always shift attention from yourself to someone else by being caring.
Go date someone else yourself
It can, if you shoot it up, and use someone else's dirty needle. You can only get HIV from blood, so as long as blood touches, then you insert it into yourself, you have the possibility of getting it.
If the needle is dirty from someone else's bodily fluid then yes. If it's just dirty in general you should be concerned about tetnus. If it's got someone else's bodily fluids or was in someone else you should also worry about Hepatitis
Forget about the love of someone else and start loving yourself!
There is no point in changing yourself for someone else. Unless you change for yourself the change will never stick.
projection
By Being yourself, don't pretend to be someone else
The feeling someone else's touch is specific and can only be obtained by someone else touching you.
you dont have to get someone else to do it you can do it yourself.