A woman being invested in being hot is definitionally not an autistic special interest:
'Persistent restricted, repetitive, and inflexible patterns of behaviour, interests, or activities that are clearly atypical or excessive for the individualβs age and sociocultural context.'
I don't think most men understand that hot women literally don't have time to have many hobbies because maintaining hotness is extremely time consuming. there are so many autistic females whose special interest is being hot.