Mental blocks....advice to get over it....PLEASE?

so im a very outspoken girl, but not in a bad way. esp. with my bf but ive been having mental blocks i guess you couls say and its really starting to bother me





so its sexually- we are totally into the ';moment'; and i want to go down on him o so badly but when i get to that point, i gett very shy and cant do it. Im afraid that its not going to be good enough or im just going to do s/t wrong.





And its not that im inexpierienced ((ive gone down plently before)) but i just gett scared and shy





what are some ways to gett over this and step out of mu comfort zone i guess...Mental blocks....advice to get over it....PLEASE?
About the only way you could dissapoint a guy when your doing that is if you bite the thing off :)





Maybe you need to ask him to give you some more encouragement so your not so worried about what your doing, but get more involved in .. hey .. gett'in funky wid yo B/F