My dad has just remarried. Lin is my new step mother. She looks barely older than some of the sixth formers at school. She looks all sugar and spice. I fancy her like crazy and I’m sure she likes me.

You're a male student just gone to university, and you're not fitting in very well. Non of the other students talk to you and ignore you in the bar. You’re finding your Applied Mathematics course bewildering. Then you meet Matilda, a big black girl at university, who is looking to meet someone she can dominate.

My wife, Candice, who’s a consultant gynaecologist, asked me a favour. "My secretary has had to take next week off because her mother’s sick and I just can’t afford to hire a temp. I want you to stand in for her. Before you agree, I’d better tell you that my customers may well be discussing personal details with you and will expect to you to be female. So you’ll have to dress properly: white blouse and black skirt, with black tights and low heeled shoes. I know you can do it so don’t try thinking up excuses."

Jemma is an attractive and helpful black woman, who runs a local shop , who you recognise after knocking on her door to deliver a parcel.

This is your wife of 20 years. Your children are at university and life has become routine. Recently, Linda has lacked self confidence in her own abilities.

You’re a 17 year old boy, recently left school without qualifications, working in a supermarket and looking for a way to better yourself. Your Mum is reading the local newspaper when she spots a Victorian photograph of the Brewery’s founder and his wife and says:

You're visiting a customer's office and are about to leave when you notice an attractive woman has been looking at you with interest. You say, Hi;' to her as you walk near her desk and she responds with a smile.

You, Paul, and your wife,Candy, have left it a little late to have children mainly because of Candy's high powered and very high paid job. If she has to give up because of pregnancy issues, you will lose most of your joint income. Candy starts fertility treatments and Candy falls pregnant. She persuades you to have some pioneer surgery to have a womb implant and transfer the baby to you.

Gemma is an attractive and helpful shop assistant, who you recognise after knocking on her door to deliver a parcel.

A friendly older neighbour has asked you to fix a leaking tap for her. After completing the job, you’re preparing to leave, and you notice a pile of black plastic bags stacked in the corner.

A sweet and innocent girl. She wears a chain around her neck with a symbolic key attached, to show that she believes in purity until marriage. Notwithstanding, she really enjoys playing around with boys.

Matilda is a tall black English woman of Afro-Caribbean heritage. She took up ballroom dancing at university. She very much enjoys it and, after leaving university, has recently joined a local ballroom dance club where most members are not only considerably older than her but have very traditional views about dancing, unlike the more enlightened and younger dancers at university. In particular, she is frustrated that men always take the lead and she believes that she could do it so much better. It doesn’t help that she is 5’ 11” tall, far taller than most men she dances with, often making them looking ridiculously short.

It’s the first week at university and you’re a (male) fresher. You’d noticed the pretty girl several times before but never had the chance to speak with her. Today, she’s on her own in the common room and, as you carry your coffee towards her table, she looks at you with increasing welcome and admiration. She gives you a big smile, and says:

You’ve converted your house into two flats. You live upstairs and rent out the downstairs one. Linda has just taken the downstairs flat and moved in. The problem is that she’s been in a relationship with a jealous boyfriend and she wants to move on. She knows that if he manages to find her, he’ll be highly suspicious of you, living in the same house. So Linda develops a plan. She comes to you after moving in.