I'd like to ask:
a) Is the pleasure you get from having your breasts/nipples stimulated while sitting/standing any different to when you're lying down? If so, do you prefer either?
b) Are your nipples more liable to become erect when (e.g.) sitting?
c) Is there anything you can recommend a partner to do, in order to maximise the chances of your nipples becoming erect?
Many thanks for any replies.