Try it
Hey. If you really are craving to have sex than fingering is the best way. Start up slowly and remember to lube your finger as it can be painful due to your first time attempt. A lil question though why you don't wanna use toys. I think these toys make your task more easy and pleasurable too. If you want you can start from something small and designed specially for virgins like you and for fingering sex only - than you should check out the rabbit finger vibe or rabbit waterproof keyring which you can use in your private bath time too  . You can check here some of these toys if you wish too : http://www.vivavibrators.co.uk/buy-fun-vibrators.html . Hope this helps you to fulfill your needs. 
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