It is common both in this series and in real life for people to think, in terms of sex crimes, that oral sex is not as serious or "bad" as sexual intercourse, but that is not true. In the eyes of the law an adult having oral sex with a minor is just as severe as sexual intercourse. For example the minors in this episode are 15 years old; an adult having oral sex with a 15-year old is criminal sexual act in the third degree, if they had sexual intercourse the charge would be rape in the third degree. Both charges are a class E felony in New York and carry the same sentence, either five years probation or a prison sentence of at least one year and a maximum of four years; for these charges probation is rarely sentenced, if it is that is usually because the defendant had no prior criminal record and cooperated with authorities.
Maxwell tells her husband that if he is convicted of sex trafficking of a child he would be looking at mandatory prison time. In New York sex trafficking of a child is a class B (violent) felony and carries a mandatory minimum sentence of five years in prison and a potential maximum of 25 years in prison. There are three victims in this case, so if he were convicted on three counts he would likely be looking at a minimum sentence of 15 years in prison and a potential maximum of 75 years.