Semen is hot because it is heated from your internal body temperature which is 98.6 degrees Fahrenheit.
There is alot of protein in semen, and your partner likes it
semen has a small amount of blood in it so the HIV is still in the blood but is carried by the semen to your partner.
It is possible for people to be allergic to semen. - Perhaps that is the cause.
Semen contains the X chromesome of the male partner and is inherited by the would be baby.
get that S|-|IT checked out bro
Yes it is safe as long as your partner is STD free.
No. Diabetes is not a transmittable disease.
It depends, but I has happened to me.
lay a towel under you and your partner or just dont do it on the bed!
1) Having sex with infected partner through oral or vagina.
Depends upon what you mean by semen play. Some women like to give their spouse or significant other, oral sex and instead of swallowing the load, they make out with their partner and transfer some of the semen back to their partner's mouth. Personally myself, I have never had that happen however, it may be interesting to see what it would be like to have it happen.
Swallowing semen is not dangerous as long as you are positive your partner has no sexually transmittable diseases.