Peanut, I think many LD people do this..make jokes out of it to hide the fact that they are terribly unprepared to be sexual. Try to focus on the fact that his joking is a defense mechanism that he has created in order to protect himSELF from looking and feeling like an idiot.
It is no reflection on you whatsoever.
It is very hard to redirect a person who knows that sex is on the agenda and they start doing this weird joking thing to take the pressure off themselves. I have just started calmly saying, It is not really a joke to me. And then move on and be happy. This gets the message across SO much louder and clearer than me getting pissy and crying or whatever. Setting firm boundaries is hard but worth it, if you can pull it off.
Usually my H, after making an joke to decompress the tension, will come to me and say "I'm sorry I'm being silly about it..I really am excited about doing XYZ with you." BUT this only comes if I have stated my preferences (don't turn this into a comedy routine) plainly and without drama.
Good luck, peanut, and for goodness' sakes try the chocolate sauce again tonight and then give all us poor suckers a report in the morning.
