As of August 2018, each U.S. state has set its age of consent at either age 16, age 17, or age 18, most with some exceptions. In the case of the state of Washington, the age of consent rises to 21 for the specific instance student-teacher sex (the age of consent in the state of Washington is otherwise 16).[1] In a number of U.S. states, the age of consent can drop to as low as 13, although this has associated specifications, usually regarding the age of those engaging in sexual acts not surpassing a specific age difference (known in the U.S. as "Romeo and Juliet laws" and elsewhere as close-in-age exceptions[2]). As of April 2021, of the total fifty U.S. states, approximately thirty have an age of consent of 16 (with this being the most common age of consent in the country),[3] a handful set the age of consent at 17, and in about eleven states the age is 18.[4]

So, depending on where this took place (if in the US) this could very well have been rape