I find pain is individual. I have had male clients who had zero issues with pain in the groin region even the penis shaft. As fenix suggests if pain is of an issue EMLA ( which is usually 2.5 % lidocaine and 2.5 % prilocaine) or any shelf brand of 5 % lidocaine applied to the area can help.
Some tips on useage of topical lidocaine:
Genital regions on females can ave lots of mucas membranes that can absorb the product very quickly.
You should use plastic wrap ( occlusion) to prevent the product from rubbing off when you sit or on clothing.I recommend using GLAD brand "Press N Seal" as it can be cut to shape and sealed to the skin around the edges. Especially over complicated to cover genital areas this can be super useful.
Lidocaine or EMLA work best the longer they are left applied, up to 2 hours beforehand to come to full effect.
Note that there has been one recorded death from misuse of EMLA with someone who covered way too large an area and had an adverse reaction to EMLA and died on the way to their laser treatment. To prevent this you should not cover an area larger than an a4 sized piece of paper. Also it's inadviseable to drive to your treatment, and if you have not used lidocaine before you should have someone you trust with you in case of adverse reaction so they can summon medical assistance if needed.
Neither EMLA not 5% lidocaine can eliminate all discomfort, but it can elp considerably.Look into other pain relief tips as well.