Two signers and one email address

I know there have been a few posts on this subject but i am struggling to get to the bottom of this. Just signed up for a trial to adobe sign. I have fillable pdf forms already built. On those forms are 2 signature fields as i deal with a Mr and Mrs a lot. I want to send one email to a single email address but get the form fields completed and then for both Mr & Mrs to sign the same document. The information i am asking means that they will complete the form together and thus be sat next to each other and so will sign together. Currently whoever signs the first signature field, that signature copies into the second signature field.

I dont want the client to receive two emails because they will fill the form out together. My question is really if this can be done or if Adobe Sign is perhaps not the software for our business needs.

Thanks for any help.

Regards

Paul