My boyfriend and I have always had a very creative and satisfying sex life, and I've always been open to trying new things, but I was a little apprehensive when he told me he wanted me to become his submissive. He's always been assertive and dominate over me, and I like that about him, but I guess the thought of giving myself to someone utterly and completely kind of scares me.
My question is what is to be expected when becoming a sub? What's it like to surrender your body and soul to someone? How do you keep from losing yourself in the process? And doms, how does it feel having that much control over someone? And how can you tell when you've taken too much from them?
It should scare you. It's not something to be taken lightly. As for what is to be expected of you, each D/s relationship is different there is no template to go by. The two of you have to sit down and talk this over. Discuss what is wanted by both of you from this type of relationship. You must discuss limits yours and his. This type of relationship takes so much trust and communication for it to be successful. There are many places you can read up on this and you should. Arm yourself with as much knowledge as you can.
Once you've made an informed decision, if its something you decide to do please make sure you have a safe word. This enables you to know full well that once that word is uttered that things cease and you can regroup and talk about the situation that caused you to use your word.
As for your questions, if you feel this type of relationship is something you want, it will feel right. If he's always been assertive and Dominant over you and you like it, you most likely will find this type of relationship appealing to you. IF you trust him enough to offer your submission to him its his job to take care of you and your needs as much as it is yours to please him completely. Each dynamic is different as I said and you both will find yours through communication.
You won't lose yourself in this process, allowing yourself to submit to him (if this is what you truly desire) will only add to who you are. There is a sense of freedom you feel once you submit to someone. It's as much mental as it is physical.
As for the amount of control you are willing to allow him to have, is completely up to you. You set your limits, soft and hard ones. It's his job as your Dom to test your soft limits and never cross your hard ones. Remember he cannot take more than you are willing to give him.
I hope you find the answers you are looking for and wish you the best of luck.