A Sex offender who has been convicted of Sexual activity with a child is
(1)A person aged 18 or over (A) commits an offence if—
(a)he intentionally touches another person (B),
(b)the touching is sexual, and
(c)either—
(i)B is under 16 and A does not reasonably believe that B is 16 or over, or
(ii)B is under 13.
(2)A person guilty of an offence under this section, if the touching involved—
(a)penetration of B’s anus or vagina with a part of A’s body or anything else,
(b)penetration of B’s mouth with A’s penis,
(c)penetration of A’s anus or vagina with a part of B’s body, or
(d)penetration of A’s mouth with B’s penis,
is liable, on conviction on indictment, to imprisonment for a term not exceeding 14 years.
https://www.legislation.gov.uk/ukpga/2003/42/part/1/crossheading/child-sex-offences
UK sex offenders and Foreign Nationals who have been convicted with Sexual activity with a child.

Daaim Ashraf, 19, 2014 Peterborough Grooming Gang Member, guilty of trafficking, sexual assault, sexual activity with a child, sexual activity in the presence of a child and a further count of intimidation, gets 12 years YOI!
20 June 2014 Two sex attackers from Peterborough who targeted teenage girls via Facebook have been jailed. BBC Look East’s Louise Hubball said Judge Mark […]