There is a incident(Amhertz University) where a college woman gave a blowjob to a passed out college man and guess who got expelled. https://www.washingtonexaminer.com/man-receives-sex-act-while-blacked-out-gets-accused-of-sexual-assault
Here are some additional readings.
Warning: adult theme cause it talk about rape.
https://www.legalmatch.com/law-library/article/rape-and-gender-can-a-woman-rape-a-man.html
https://blogs.findlaw.com/blotter/2012/01/men-can-be-legally-raped-new-fbi-definition.html
https://www.swissinfo.ch/eng/society/criminal-law_why-men-can-t-be-rape-victims-in-switzerland/44405128
https://www.localsolicitors.com/criminal-guides/a-guide-to-uk-rape-laws
https://www.blmsolicitors.co.uk/2014/03/is-the-law-on-rape-sexist/
Note here the male pronoun is used and non consented penetration by a penis http://www.legislation.gov.uk/ukpga/2003/42/section/1
Why using a male pronoun is a big deal?
Because in law the words of the law is a big deal. The law shall be followed to the letter and even a typo can make or break a case. https://www.americanbar.org/groups/young_lawyers/publications/tyl/topics/writing/do-typos-matter/
When the definition rape is worded that made it only those with penis could rape then only those with penis can be charged with rape.
As many loopholes are exploited using them. These loopholes can reduce the sentence example murder to homicide or outright dismiss it. Murder is higher level than homicide as rape is higher level than sexual assault. Rape has more severe punishment than sexual assault.
Example of this is this:
https://www.channel3000.com/news/legislators-vow-to-close-legal-loophole-that-allowed-felony-sex-assault-to-be-dropped/1085407277
She brought these allegations to the police, but when it finally got to court this month, Thom's lawyers argued the felony should be dropped, citing a subsection of the state statute on second-degree sexual assault, which prohibits doctors from having sexual contact with clients at just about every type of hospital or clinic except the one Thom worked at.
There are some movement to change the wordings of the law to make it clear, gender neutral and all encompassing despite some resistance(especially India). Some US states already using the gender neutral ones.
Apparently women can't rape at least according to the manga criminale
https://mangadex.org/chapter/15423/28