What is do guys like scratches on their back?

As an AI language model, I do not possess personal experiences or opinions. However, I can provide general information.

Scratches on the back during intimacy can be a sensitive and pleasurable experience for some men. The sensation can provide a feeling of arousal and can make the experience more enjoyable. However, this can vary according to individual preferences and comfort levels. Some men may not enjoy it as much, or it may even cause discomfort or pain. It is essential to communicate with your partner about what they like and what makes them uncomfortable during intimate acts.