Martha applies some pressure.

Martha starts her spiel with some perfumes, as she has already got a special one picked out for Ellen. She puts 3 bottles on the table and has Ellen smell them before being applied to the skin; the blonde really likes all of them for one reason or another. Before she forgets, Martha opens the one case and shows the blonde the selection of lingerie inside. The lingerie ranged from sensible support bras to some delicious kinky teddies and camisoles, likely for the ladies who want to give something a little extra special for their man.

Once they are done looking at prospective purchases, Martha gets the blonde to allow her to apply some perfume to her neck and then gets the blonde to apply some at the top of her nice cleavage. This first one perfume contains a formula that makes the recipient very susceptible to the power of suggestion. It takes only a couple of minutes before the odour has penetrated to the brain cells of Ellen, so now she is open to suggestions. They both fell silent for a while as Martha worked on the blonde’s lovely face, smoothing out the tiny imperfections with her delicate fingers and accentuating her high cheekbones, large eyes, fine brow.

At last Martha came to her luscious lips. When she drew out her pale nude lipsticks, Ellen drew back. "None of those, please", she said. "Oh honey, not to worry. These won't even kiss off", she assured her.
"That's what they all say."
"I'll prove it." Martha applied the colour to her own lips, smacked them together, and puckered up. "Now, pretend I'm your husband. Kiss me. Kiss me like you haven't seen me for a month."

Ellen looked at the saleslady in surprise. "You're a woman! And besides…” Martha could see the blush reddening her cheeks beneath the light layer of make-up she had applied (that she didn't need). The blonde was thinking about it.
"Oh, don't be silly. It doesn't mean anything. You don't think this stuff will stay and this is the best way to prove it to you."
"Okay, I believe you," Ellen said finally.
Taking a deep breath, Martha said "Are you afraid you'll like it?"
"No! I mean I know I am not attracted to women. You're obviously lovely, I mean, I can see that, but it's not, girls I can't kiss-".