Have they exchanged any lewd photographs?
In that case, he isn't committing an offence. She is 16 and therefore old enough to consent.
However, he might want to consider how these people might have come by this information as it is likely that they were assisted by her and run for the hills before she makes allegations of sexual abuse.
Normal women do not incite other people to call their partners perverts usually.
But if he is intend then she is old enough to consent to anything but the exchange of explicit photographs.
Can I clarify anything for you?
All the best.
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