Complex sentence: According to these theories, the cuckold fetishist seeks pleasure both from the act of being humiliated, and by giving pleasure to their partner (s), but cuckolding can be summed psychologically as "distributing sexual humiliation to the cuckold".
Split into simpler sentences: According to these theories, the cuckold fetishist seeks pleasure both from the act of being humiliated, and by giving pleasure to his partner (s). But cuckolding can be summed psychologically as "distributing sexual humiliation to the cuckold".