The court was told two different men arranged to meet King on separate dates in September 2019 and July 2020.
On both occasions, King partially removed their genitalia with their consent.
Police were alerted to the second incident at a Brisbane backpackers hostel after the man, 26, suffered complications from the surgery.
King had no formal surgical qualifications when he performed the surgeries.
Ryan Andrew King was given a suspended sentence. Photo / SuppliedJudge Richard Jones sentenced him to a three-and-a-half years' jail, wholly suspended.
With time already served, he ordered King be released immediately.
A three-year probation order was also imposed.