The only debate would be about whether a neo-phallus (post-op transman - so female) counts as a penis. I would argue that it does not, but I don't know what the law would think.
In Scotland, a neo-phallus counts as a penis in the definition of rape.
Sexual Offences Act 2009 Section 1 Rape
"(1)If a person (“A”), with A's penis—
(a)without another person (“B”) consenting, and
...
(4)In this Act—
- “penis” includes a surgically constructed penis if it forms part of A, having been created in the course of surgical treatment, ..."
However, i isn the Sexual Offences Act 2003 applicable to England and Wales there is no such provision, and Section 1 Rape subsection 1 reads
"(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 consent."
Note that it uses the pronouns 'he' and 'his', where the Scottish legislation uses 'A' and 'A's'.