A dildo is a sex toy designed for pleasure and imitates the shape of a phallus, which is used both for solo play and in pairs, as well as for anal or oral stimulation. There is a huge variety of models - different sizes, shapes and materials, so everyone can find an option to suit their preferences.

Double penetration (DP) is a sexual practice in which a partner receives simultaneous penetration in two orifices. It can occur with either one or two partners, or with the use of a penis, toys or other devices.

DD/lg (Daddy Dom/Little Girl) is a special dynamic in BDSM where one partner (Daddy Dom) takes a nurturing and guiding role, while the other partner (Little) shows a more playful, soft and dependent side. It's not about literal parenthood, but rather a special role play where one partner gives support, control and security while the other can relax and feel protected.

A dominant is a person who takes the lead in the relationship or sexual dynamic, directing and controlling the actions of the submissive. The dominant sets the rules, sets the scenarios of interaction, but everything happens within pre-negotiated boundaries; as the main thing here is agreement and mutual consent.

Deep throat is an oral sex technique in which the penis is inserted not only into the mouth, but deeper into the throat. While some people find it incredibly pleasurable, others may have difficulty due to sensitivity or discomfort.

Doggy style is one of the most popular sex positions where the penetrating partner is behind and the receiving partner is on all fours or leaning on something. The classic version involves support on hands and knees, but the position can easily be adapted to make it more comfortable and pleasurable for both.

Dirty talk is when partners use frank, sometimes even obscene language to create sexual tension and increase arousal. They can be part of foreplay or occur right during intimacy, adding spice to intimate moments; therefore, this practice is a great way to diversify your relationship and make sex more varied.

Dick pic is an informal term for a picture of male genitalia sent over the internet or messengers. In some cases, it may be part of a consensual flirtation, but it is much more common for such pictures to be sent without permission, making them intrusive and distasteful.

Dating is a way to get to know someone better, socialize and see if there is a romantic or emotional connection between you. It's not just a meeting, but a process of learning about each other to help determine how compatible you are and what you want out of a relationship.

Dry Orgasm is a condition in which a man reaches orgasm without ejaculation. Although the physical sensation of orgasm persists, the absence of ejaculation may be perceived as a physiological abnormality or be part of conscious sexual practices. This phenomenon occurs in healthy men as well as in those with certain medical or psychological problems.

Demisexuality is when a person experiences sexual attraction only after a strong emotional bond has been formed with a partner. In this sense, mere liking or external attraction is not enough - trust, intimacy and deep feelings are important .

A diaphragm is a flexible, reusable, dome-shaped cap that is inserted into the vagina to prevent unwanted pregnancy. It is one of the barrier methods of contraception like condoms or cervical caps.