vague memory from when i was studying up on male 'rape' many moons ago the term rape didnt apply to men as they didnt have a vagina, and rape was classed as per vagina so the term 'assault by penetration' was used instead...
so if they're using that term its quite possible the lady was subjected to sodomy instead of being raped in the usual sense of the word. either way its horrible that anyone should be subjected to any kind of assault.
The term does now apply to male rape, this is one of the things that was reformed in 2003 with the Sexual Offences Act, i have cut and pasted section 1 of the act, as you can see it covers penile penetration of the vagina, anus or mouth.
1 Rape
(1) A person (A) commits an offence if—
(a) he intentionally penetrates the vagina, anus or mouth of another person (B) with his penis,
(b) B does not consent to the penetration, and
(c) A does not reasonably believe that B consents.
(2) Whether a belief is reasonable is to be determined having regard to all the circumstances, including any steps A has taken to ascertain whether B consents.
(3) Sections 75 and 76 apply to an offence under this section.
(4) A person guilty of an offence under this section is liable, on conviction on indictment, to imprisonment for life.
The guy however admitted to assault by penetration which is covered by section 2 of the act and differentiated from rape,
2 Assault by penetration
(1) A person (A) commits an offence if—
(a) he intentionally penetrates the vagina or anus of another person (B) with a part of his body or anything else,
(b) the penetration is sexual,
(c) B does not consent to the penetration, and
(d) A does not reasonably believe that B consents.
(2) Whether a belief is reasonable is to be determined having regard to all the circumstances, including any steps A has taken to ascertain whether B consents.
(3) Sections 75 and 76 apply to an offence under this section.
(4) A person guilty of an offence under this section is liable, on conviction on indictment, to imprisonment for life.
As you can see this involves penetration by anything other than penile. It would cover a finger or other implement such as a stick, bottle, etc. penetrating the vagina or anus.
As you can see by subsection 4, that the maximum penalty is life imprisonment, so although the law recognises a difference, it doesn't make it any less serious than rape.
Paul