theres always webcam. . When I had an internet dom, he would have me do things such as spanking myself with a hard metal ruler for him. So having your sub perform for you is an option, assuming they have a webcam that is. I'd also think it would show a great deal of submission for them to spank...
My new girlfriend is really wants to try bondage, dom/sub stuff. She wants me to dom her. Neither of us really have experience in this. Any advice on how to ease into this? simple bondage stuff we could try?