Personally I think that bonds are strengthened by strong, shared memories. That is what a big part of what a relationship really is, a sharing of experiences together. Here is my serious answer: be honest and open. When the time comes it may be awkward, but it will also be a fun and memorable bonding experience, provided you find a person that appreciates you for you. I also wouldn't worry too much about the so-called experience people have from doing quickies in a toilet. Learning a mechanical approach to sex (which is a likely outcome of toilet training and training with whores), rather than understanding the importance of an emotional connection and fulfilling your partner's needs, will ultimately be more damaging to any relationship you undertake.