yes, for girls probably questionable; (it's not just for enjoyment though its for extremely intimate, open connection and communication of two people)
by having sexual intercourse with a bear
By having sexual intercourse with it.
by having sexual intercourse with a bear
Having sexual intercourse, or masturbating regularly.
By having sexual intercourse.
By not having sexual intercourse.
By having sexual intercourse with a man.
Having sexual intercourse at precise times so as not to coincide with ovulation (not very reliable) or not having sexual intercourse at all (100% reliable).
Copulation is another word for sexual intercourse (having sex). The word "fornication" also means the same thing (sexual intercourse/having sex).
Having sexual intercourse, or masturbating regularly.
by having sexual intercourse with her
a man and a woman having sexual intercourse